And afterwards, the World Cup victor pledged his commitment to United for the new season, despite the continued interest of Barcelona. Pogba responded with a strong all-round performance, as well as scoring the opening goal after what I have to say was a very unusual run-up for his penalty.
Pogba overruled Alexis Sanchez when United were awarded an early penalty despite the protestations of his teammate.
While it may have been surprising to see Manchester United sign just one first-team player this summer, it was also surprising to see them keep hold of one player in particular - Anthony Martial.
Pogba only returned to training four days ago from an extended holiday after France won the World Cup in Russian Federation in July.
'Paul was fantastic. His contribution was unbelievable. "We have Paul with nine days training, Rashford with 11 days training, Fellaini with nine days training and of course we will be in a better condition, I don't remember in my career to be so much in trouble to make changes, because I want to make five or six [substitutions] and I have only three".
Luke Shaw added a second in the 83rd minute before Jamie Vardy scored what turned out to be a consolation goal in stoppage time.
Despite the criticism Pogba endured last season from contingents of the press, his performance - statistically at least - had actually improved from the season before, and he had an excellent World Cup. I told them to give everything they had.
Whether it were mind games or genuine woe, the Portuguese continually insisted on more additions in his pre-season press conferences and only received Fred, Diogo Dalot and Lee Grant in return.
Leicester defender Harry Maguire was a target, but a £60m United bid was apparently thrown out.
The Premier League season kicks off tonight when United host Leicester City and all eyes will be on Mourinho.
We have big and multi-functional coaching staffs, and I think we are more the head coach than the manager.
"I don't want to speak too soon after one game but I want to be up there with the best left-backs in the world", he said.